These latest updates include new features to Microsoft’s Mobile Services Protocol as well as a new software development kit (SDK). As a result, developers will now be able to create mobile versions of Windows Live Hotmail, Windows Live Messenger and Windows Live Spaces.

Microsoft also announced the availability of Windows Live @mobile program. The idea behind this program is to enable mobile operators to easily deploy selected Microsoft mobile services to their customers. A plethora of business models are available to help the operators monetize on their offerings. Currently, the @mobile program is available in 46 countries and will be expanding to additional markets in the next year.

Microsoft has been working very hard increase its footprint beyond its traditional niche in the Windows operating system platform and Office productivity software. The move here to open its Window Live services to other platforms is laudable.

Update: Microsoft has contacted us that developers have, in fact, been able to develop for non Windows Mobile platforms since the launch of the program two years ago, and that it was one of the main benefits. Hence the new version of the developer program is more of an expansion of the capabilities and services offered.